
package com.seekting.study;

import java.util.HashSet;

public class HashSetTest {

    public static void main(String[] args) {
        HashSet<String> ha = new HashSet<String>(2, 0f);
        ha.add("1");
        ha.add("2");
        ha.add("3");
        System.out.println(ha.size());
    }
}
